What kind of lighting elements are recommended to be installed in photovoltaic systems?
Due to the intrinsic characteristics of photovoltaic systems, in which the capacity of energy storage is limited, the lighting devices should be of high efficiency and low consumption in order to maximize the usage time. The best are electronic lamps, these have the same luminous capabilities as conventional incandescent lamps but their energy comsuption is approximately 80% lower and their life-time 8 times higher. This is due to the fact that 95% of the energy consumed by incandescent lamps is transformed into heat and not into light, while electronic lamps irradiate much less heat and transform about 30% of the consumed energy into light. Also, conventional fluorescent lamps can be used but the should always be accompanied by electronic reactances.
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